Spectroscopy of Vibrationally excited states of CCH

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Vibrationally excited states of CCH radical, up to 5000 cm-1 above the ground vibrational level of the X2X+ state, have been studied by laser-induced fluorescence in both a flow cell and a supersonic beam expansion. CCH radical was generated by photolyzing acetylene with 193 nm laser light. Ten uv bands of parallel type transitions have been assigned as the transitions from X(0, ν2, 0) (ν2=1, 3-11) to S (K=0) or U (K=l). Comparison between the experimental observations and ab initio calculations of the bending vibrational levels will be given.

Original languageEnglish
Pages (from-to)320-324
Number of pages5
JournalProceedings of SPIE - The International Society for Optical Engineering
StatePublished - 17 Jun 1994
EventLaser Techniques for State-Selected and State-to-State Chemistry II 1994 - Los Angeles, United States
Duration: 23 Jan 199429 Jan 1994


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